Clear Outside vs Active Aurora

Reliable weather forecasts for astronomers with an emphasis on cloud cover. Key Features Weather Forecasts • Seven day hourly forecasts, updated hourly • Low, medium, high and total cloud cover • Regular weather data (wind, rain, frost, temperature, dew point, etc) • Covers daytime too - ideal for solar observers and imagers Astronomical Information • Moon rise/set times and phase • Sun rise/set and transit times • Civil/nautical/astronomical darkness periods • International Space Station (ISS) pass-over information with precise timing for your location Location Management • Set and save your home location for quick access • Add locations manually or use location services for automatic positioning • Search for locations worldwide • Save multiple favourite locations for easy switching • All location data stored locally on your device Why Clearoutside? Updated hourly, because frequent updates matter! Often the clear spell between showers provides excellent seeing, and 30 minutes under a clear sky with a grab-and-go telescope is pure gold. Our favourite feature? The ISS pass-over information is precisely calculated for your location and displayed alongside cloud forecasts, making it easier than ever to catch the station overhead. No cutesy graphics - just detailed, reliable weather data presented clearly for serious observers. We've had a lot of fun building and testing Clear Outside and are keen to develop it further. If you find it useful or have suggestions, please let us know!

Never miss the aurora again. Active Aurora is a free aurora forecast and alert app for the northern lights (aurora borealis) and the southern lights (aurora australis), with live tracking for over 167,000 locations worldwide. Set your location once and Active Aurora watches the sky for you. When aurora activity rises near you, you get an instant push or email alert, so you can stop refreshing and head outside at the right moment. AURORA ALERTS THAT MATTER • Instant alerts when aurora activity climbs at your location • Choose your level, from Minor to Severe • Extra alerts for solar wind shocks, substorms and IMF (Bz) surges • Push notifications, email, or both, with your choice of alert sound LIVE AURORA FORECAST • A live activity dial showing current aurora conditions at a glance • 1-hour and 3-hour aurora forecasts tailored to your location • 3-day Kp index forecast with the best viewing times highlighted • Live aurora map with the auroral oval and real-time sighting reports SKY WATCH: LET YOUR PHONE KEEP WATCH No more setting an alarm every hour to check the sky. Point your phone at the night sky, turn on Sky Watch and go to sleep. It watches all night and sounds an alarm the moment it spots aurora. What the camera sees is never stored or uploaded. SPACE WEATHER DATA FOR AURORA CHASERS • Solar wind speed, density and Bz / IMF • Kp index and geomagnetic storm levels (G1 to G5) • Substorm strength from ground magnetometers • Hemispheric power, GOES data and detailed charts WHY ACTIVE AURORA Most aurora apps just repeat the global Kp index. Active Aurora combines satellite solar wind data with ground magnetometers across three continents to give a local reading for where you actually are. That works whether you're chasing the northern lights in Iceland, Norway, Finland, Canada, Alaska or Scotland, or the southern lights in New Zealand, Tasmania and southern Australia. Free to use, with no account needed to get started.